159961754138 has 8 divisors (see below), whose sum is σ = 243229516788. Its totient is φ = 78885248544.

The previous prime is 159961754111. The next prime is 159961754143. The reversal of 159961754138 is 831457169951.

It can be written as a sum of positive squares in 2 ways, for example, as 150523048729 + 9438705409 = 387973^2 + 97153^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 547814081 + ... + 547814372.

Almost surely, 2^159961754138 is an apocalyptic number.

159961754138 is a deficient number, since it is larger than the sum of its proper divisors (83267762650).

159961754138 is a wasteful number, since it uses less digits than its factorization.

159961754138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095628528.

The product of its digits is 8164800, while the sum is 59.

The spelling of 159961754138 in words is "one hundred fifty-nine billion, nine hundred sixty-one million, seven hundred fifty-four thousand, one hundred thirty-eight".